Precise positioning and excision device for breast tumor

Abstract

The invention discloses a breast tumor accurate positioning and resection device which comprises a positioning mechanism used for positioning a breast tumor. The grabbing and excising mechanism is used for grabbing and excising the breast tumor positioned by the positioning mechanism; and the mounting frame is used for connecting the positioning mechanism and the grabbing and cutting mechanism and fixing the grabbing and cutting mechanism above the positioning mechanism. The breast tumor with the position detected in advance is positioned through the positioning disc, the breast tumor is placed in the via hole, the positioning disc is straightened, at the moment, the longitudinal marking lines and the transverse marking lines on the positioning disc point to the tumor position, marks are made on the marking lines, and when positioning is needed again next time, only the tumor needs to be placed in the via hole, and then the tumor is positioned. When the breast tumor is cut off, the positioning disc is re-straightened according to the marked positions on the longitudinal marking line and the transverse marking line, and then the pressing handle is pressed downwards, so that the grabbing claw grabs the tumor and pulls the breast tumor upwards into the sleeve for cutting off work.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a device for accurately positioning and removing breast tumors. Background Art

[0002] At present, when breast cancer (i.e., malignant breast tumor) is diagnosed, adjuvant chemotherapy is usually required first, especially for large tumors, and then surgery is performed to remove the primary lesion. In the actual treatment process, with the application of adjuvant chemotherapy, the tumor usually gradually becomes smaller or even disappears. When performing breast-conserving surgery for breast cancer in the later stage, medical staff need to clearly know the position of the tumor relative to the body surface before chemotherapy, so as to more accurately determine the resection range of the primary lesion.

[0003] At present, surgical resection is the main method of treatment in clinical practice. However, since breast tissue is relatively soft, the tumor is prone to slipping when fixed, and it is difficult to fix the tumor during surgical cutting. The tumor tissue cannot be accurately located, and inaccurate positioning will affect the tumor resection surgery, greatly increasing the difficulty of the medical staff's work. Summary of the invention

[0004] The purpose of the present invention is to provide a device for accurately locating and removing breast tumors to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A breast tumor precise positioning and removal device, comprising

[0007] A positioning mechanism, the positioning mechanism is used to locate a breast tumor;

[0008] A grasping and removing mechanism, the grasping and removing mechanism is used to grasp and remove the breast tumor located by the positioning mechanism;

[0009] A mounting frame is used to connect the positioning mechanism and the grabbing and cutting mechanism and to fix the grabbing and cutting mechanism above the positioning mechanism.

[0010] As a further solution of the present invention: the positioning mechanism includes a positioning plate and a side strip fixed on the outer periphery of the positioning plate, a through hole is provided at the center of the positioning plate for passing through the grasping and cutting mechanism and performing grasping and cutting work, a plurality of through holes are evenly provided on the outer side of the positioning plate body around the through hole, the through holes are used for air circulation to prevent wound stuffiness and infection, longitudinal marking lines are provided on the front and back sides of the surface of the positioning plate body, and transverse marking lines are provided on the left and right sides of the surface of the positioning plate body, the longitudinal marking lines cooperate with the transverse marking lines to locate the position of the breast tumor.

[0011] As a further solution of the present invention: the grasping and cutting mechanism includes a sleeve and a screw sleeve, a sliding rod is slidably connected inside the sleeve, one end of the sliding rod extends to the top of the sleeve, and a pressing handle is fixed to the top of the sliding rod, one end of the sliding rod is sleeved with a first spring, the upper and lower ends of the first spring are respectively connected and fixed to the pressing handle and the sleeve, and a plurality of grasping valve claws are fixed to the bottom end of the sliding rod.

[0012] As a further solution of the present invention: the outer surface of the sleeve corresponding to one end of the screw sleeve is provided with an external thread, the screw sleeve is provided with a corresponding internal thread, and the sleeve is threadedly connected to the screw sleeve via the external thread provided on its surface.

[0013] As a further solution of the present invention: a sliding hole is opened in the sleeve, and the sliding hole is used to slide the sliding rod up and down; a cutting cavity is opened at the bottom end of the sleeve corresponding to the sliding hole on one side; the cutting cavity is used to provide a working space for cutting breast tumor tissue; a plurality of cutting blades are arranged around the cutting cavity; a linkage rod is fixed on the plurality of cutting blades; one end of the plurality of linkage rods passes through the inner wall of the sleeve and extends upward; a button is provided on one side of the upper end of the sleeve corresponding to the plurality of linkage rods; a guide rod is fixed between the plurality of buttons and the linkage rod on the corresponding side; the guide rod, the button and the linkage rod all slide relative to the axial direction of the sleeve.

[0014] As a further solution of the present invention: a second spring is sleeved on each of the plurality of guide rods, and two ends of the plurality of second springs are respectively connected and fixed to the inner walls at both ends of the sleeve.

[0015] As a further solution of the present invention: the mounting frame includes a support ring, the support ring is sleeved on the outside of the grabbing and cutting mechanism, and the support ring is arranged above the positioning mechanism, the support ring and the grabbing and cutting mechanism are connected and fixed by a transverse bracket, and the support ring and the positioning mechanism are connected and fixed by a longitudinal bracket.

[0016] As a further solution of the present invention: the grabbing claw is a sheet-like structure, is elastic and can be stretched or contracted, and includes a bending portion and a grabbing portion, the bending portion and the grabbing portion are integrally formed, the grabbing portion is arranged at the bottom end of the bending portion, the top end of the bending portion is connected and fixed to the sliding rod, and the bottom end of the grabbing portion is a pointed structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the breast tumor whose position is pre-detected is located by the positioning disk, the breast tumor is placed in the through hole, and the positioning disk is adjusted. At this time, the longitudinal marking line and the transverse marking line on the positioning disk point to the tumor position, and the marking line is marked. When positioning is needed next time, it is only necessary to place the tumor in the through hole and re-adjust the positioning disk according to the marking position on the longitudinal marking line and the transverse marking line;

[0019] 2. In the present invention, by pressing the pressing handle downward, the sliding rod is pushed downward and the bottom end thereof extends out of the sleeve, and the pressing is continued so that one end of the sliding rod passes through the through hole, and the grasping claw contacts and squeezes the breast tumor. After the grasping claw squeezes the tumor, its bottom end opens so that the tumor is clamped in the cavity in the center of the claw. At this time, the pressing handle is released, and under the action of the first spring, the sliding rod is reset upward, and drives the grasping claw to move upward synchronously. During the upward movement, the breast tumor is pulled upward into the sleeve for excision. Furthermore, the grasping claw is set to six, and the sides of the six grasping claws are adjacent to each other in pairs to form a closed structure, and the bottom ends of the six grasping claws are close together. The six grasping claws cooperate with each other and can simultaneously close and clamp the breast tumor tissue from multiple angles and directions.

[0020] 3. In the present invention, four cutting blades are provided, which are arranged around the inside of the cutting cavity. The four cutting blades can be brought together inward to cut tumor tissue. Correspondingly, four linkage rods, four guide rods and four buttons are provided. The linkage rod is inserted in the inner wall of the sleeve, and the linkage rod can slide toward one side of the sleeve axis. The top end of the linkage rod is connected and fixed to the guide rod. The guide rod is slidably inserted in the inner wall of the sleeve and the sliding direction of the guide rod is also toward the side of the sleeve axis. When the button is pressed, the guide rod will be pushed to slide inward and drive the linkage rod to move inward synchronously, so that the cutting blade can be moved toward the axis of the sleeve. Pressing the four buttons at the same time can make the four cutting blades move inward synchronously until they are brought together, thereby cutting the breast tumor tissue located in the cutting cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure after the positioning mechanism and the grasping and cutting mechanism in the present invention are connected.

[0024] Figure 3It is a structural schematic diagram of the positioning mechanism in the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the grabbing and cutting mechanism in the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the grasping component in the grasping and cutting mechanism.

[0027] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the cutting component in the grasping and cutting mechanism.

[0029] Figure 8 It is a top view of the structural cross-section of the cutting component in the grabbing and cutting mechanism.

[0030] Notes on figure marks: 1-positioning mechanism, 11-side strip, 12-positioning plate, 13-through hole, 14-longitudinal marking line, 15-transverse marking line, 16-through hole, 2-grabbing and cutting mechanism, 21-sleeve, 22-slide rod, 23-pressing handle, 24-external thread, 25-screw sleeve, 26-grabbing valve claw, 261-bending part, 262-grabbing part, 27-first spring, 28-button, 29-linkage rod, 210-cutting blade, 211-slide hole, 212-cutting cavity, 213-guide rod, 214-second spring, 3-support ring, 4-longitudinal bracket, 5-transverse bracket. DETAILED DESCRIPTION

[0031] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0032] See also Figure 1 , Figure 2 In an embodiment of the present invention, a device for precise positioning and removal of a breast tumor includes a positioning mechanism 1 and a grasping and removing mechanism 2. The positioning mechanism 1 is used to locate the breast tumor, and the grasping and removing mechanism 2 is used to grasp and remove the breast tumor positioned by the positioning mechanism 1. The positioning mechanism 1 and the grasping and removing mechanism 2 are connected and fixed by a mounting frame. The mounting frame includes a support ring 3. The support ring 3 is sleeved on the outside of the grasping and removing mechanism 2, and the support ring 3 is arranged above the positioning mechanism 1. The support ring 3 and the grasping and removing mechanism 2 are connected and fixed by a transverse bracket 5, and the support ring 3 and the positioning mechanism 1 are connected and fixed by a longitudinal bracket 4.

[0033] See also Figure 3 The positioning mechanism 1 includes a positioning plate 12 and a side strip 11 fixed on the periphery of the positioning plate 12. The side strip 11 is used to fix the longitudinal bracket 4. A through hole 16 is provided at the center of the positioning plate 12 for passing through the grasping and cutting mechanism 2 and performing grasping and cutting work. A plurality of through holes 13 are evenly provided on the outer side of the positioning plate 12 body surrounding the through hole 16. The through holes 13 are used for air circulation to prevent the wound from being infected by stuffiness. The front and rear sides of the surface of the positioning plate 12 body are provided with longitudinal marking lines 14, and the left and right sides of the surface of the positioning plate 12 body are provided with transverse marking lines 15. The longitudinal marking lines 14 cooperate with the transverse marking lines 15 to locate the position of the breast tumor;

[0034] In this embodiment, the breast tumor whose position has been pre-detected is located by the positioning plate 12, the breast tumor is placed in the through hole 16, and the positioning plate 12 is adjusted. At this time, the longitudinal marking line 14 and the transverse marking line 15 on the positioning plate 12 point to the tumor position, and marks are made on the marking lines. When positioning is needed next time, it is only necessary to place the tumor in the through hole 16 and realign the positioning plate 12 according to the marked positions on the longitudinal marking line 14 and the transverse marking line 15.

[0035] See also Figure 4 , Figure 5 The grabbing and cutting mechanism 2 includes a sleeve 21 and a screw sleeve 25. A slide bar 22 is slidably connected in the sleeve 21. One end of the slide bar 22 extends to the top of the sleeve 21. A pressing handle 23 is fixed to the top of the slide bar 22. A first spring 27 is sleeved on one end of the slide bar 22. The upper and lower ends of the first spring 27 are respectively connected and fixed to the pressing handle 23 and the sleeve 21. A plurality of grabbing claws 26 are fixed to the bottom end of the slide bar 22.

[0036] In this embodiment, by pressing the pressing handle 23 downward, the slide bar 22 is pushed downward and the bottom end thereof extends out of the sleeve 21. The pressing is continued so that one end of the slide bar 22 passes through the through hole 16 and the grasping claw 26 contacts and squeezes the breast tumor. After the grasping claw 26 squeezes the tumor, its bottom end opens so that the tumor is clamped in the cavity in the center of the claw. At this time, the pressing handle 23 is released. Under the action of the first spring 27, the slide bar 22 is reset upward and drives the grasping claw 26 to move upward synchronously. During the upward movement, the breast tumor is pulled upward into the sleeve 21 for removal.

[0037] See also Figure 5 , Figure 6The grasping claw 26 is a sheet-like structure, which is elastic and can be stretched or contracted. Preferably, the grasping claw 26 is set to six, and the sides of the six grasping claws 26 are adjacent to each other to form a closed structure. The bottom ends of the six grasping claws 26 are close together. The six grasping claws 26 cooperate with each other and can simultaneously close and clamp breast tumor tissue from multiple angles and directions. The grasping claw 26 includes a bending portion 261 and a grasping portion 262. The bending portion 261 and the grasping portion 262 are integrally formed. The grasping portion 262 is arranged at the bottom end of the bending portion 261. The top end of the bending portion 261 is connected and fixed to the sliding rod 22, and the bottom end of the grasping portion 262 is a pointed structure.

[0038] In this embodiment, the six grasping portions 262 are connected together at one end away from the bending portion 261. When the six grasping claws 26 are in the sleeve 21, due to the limiting blocking of the inner wall of the sleeve 21, the six grasping claws 26 are in a contracted state and are close together. When the six grasping claws 26 extend out of the sleeve 21, due to the elasticity of the claws themselves, the claws will freely stretch outward, and the grasping portions 262 at the bottom ends of the six grasping claws 26 will gradually separate. After the six grasping portions 262 grasp the breast tumor, when the grasping claws 26 are retracted upward into the sleeve 21, the bottom ends of the six grasping portions 262 will be close together, pulling the tumor tissue upward into the sleeve 21.

[0039] Please refer again Figure 4 The outer surface of the sleeve 21 corresponding to one end of the screw sleeve 25 is provided with an external thread 24, and the screw sleeve 25 is provided with a corresponding internal thread. The sleeve 21 is threadedly connected with the screw sleeve 25 through the external thread 24 provided on its surface, and the screw sleeve 25 is fixed in the middle position inside the support ring 3. In this embodiment, the sleeve 21 and the screw sleeve 25 are threadedly matched. When the screw sleeve 25 is held and the sleeve 21 is rotated, the sleeve 21 can be moved up and down relative to the screw sleeve 25, so that the bottom end of the sleeve 21 is close to the through hole 16, which is convenient for breast tumor tissue to enter the sleeve 21 and be removed.

[0040] See also Figure 7 , Figure 8A sliding hole 211 is provided in the sleeve 21, and the sliding hole 211 is used to slide the sliding rod 22 up and down. A cutting cavity 212 is provided at the bottom end of the sleeve 21 corresponding to one side of the sliding hole 211. The cutting cavity 212 is used to provide a working space for cutting breast tumor tissue. A plurality of cutting blades 210 are arranged around the cutting cavity 212. Linkage rods 29 are fixed on the plurality of cutting blades 210. One end of the plurality of linkage rods 29 passes through the inner wall of the sleeve 21 and extends upward. A button 28 is provided on one side of the upper end of the sleeve 21 corresponding to the plurality of linkage rods 29. A guide rod 213 is fixed between the plurality of buttons 28 and the linkage rod 29 on the corresponding side. The guide rod 213, the button 28 and the linkage rod 29 slide relative to the axial direction of the sleeve 21. Second springs 214 are sleeved on the plurality of guide rods 213. The two ends of the plurality of second springs 214 are respectively connected and fixed to the inner walls at both ends of the sleeve 21.

[0041] In this embodiment, the cutting blades 210 are preferably set to four, which are arranged around the inside of the cutting cavity 212. The four cutting blades 210 can be brought together inward to cut tumor tissue. Correspondingly, four linkage rods 29, four guide rods 213 and four buttons 28 are set. The linkage rod 29 is inserted into the inner wall of the sleeve 21, and the linkage rod 29 can slide toward the axis of the sleeve 21. The top of the linkage rod 29 is connected and fixed to the guide rod 213. The guide rod 213 is slidably inserted into the inner wall of the sleeve 21 and the sliding direction of the guide rod 213 is also toward the axis of the sleeve 21. When the button 28 is pressed, the guide rod 213 is pushed to slide inward and the linkage rod 29 is driven to move inward synchronously, so that the cutting blades 210 can be moved toward the axis of the sleeve 21. Pressing the four buttons 28 at the same time can make the four cutting blades 210 move inward synchronously until they are brought together, thereby cutting the breast tumor tissue located in the cutting cavity 212.

[0042] Working principle:

[0043] This device needs to be positioned twice when in use. The first positioning is used to predetermine the position of the breast tumor, and the second positioning is used to perform grabbing and removal. Before the first positioning, the position of the breast tumor is first scanned by an ultrasonic instrument, and then the tumor is positioned by the positioning mechanism 1. At this time, it is necessary to mark the longitudinal markings 14 and transverse markings 15 of the positioning plate 12 to facilitate secondary identification and positioning. After the marking is completed, the positioning plate 12 is removed, and the grabbing and removal mechanism 2 is fixed to the positioning mechanism 1 through the mounting frame. After fixation, the positioning plate 12 is re-positioned to the tumor tissue according to the previously made marking signals on the longitudinal markings 14 and transverse markings 15, and the tumor is located in the through hole 16 at the center of the positioning plate 12;

[0044] When the tumor is placed in the through hole 16, the pressing handle 23 is pressed downward to push the slide bar 22 downward until the grabbing claw 26 at the bottom end of the slide bar 22 contacts the tumor, and the bottom end of the grabbing claw 26 opens to cover the tumor tissue, then the pressing handle 23 is released. Under the action of the first spring 27, the slide bar 22 is reset and drives the grabbing claw 26 to move back upward. During the moving back process, the grabbing portion 262 at the bottom end of the grabbing claw 26 closes inward to clamp the tumor tissue, and pulls the tumor upward into the cutting cavity 212 at the bottom end of the sleeve 21.

[0045] After the tumor is pulled into the cutting cavity 212, the button 28 is pressed to push the guide rod 213 inward and drive the cutting blade 210 to move inward synchronously through the linkage rod 29. Pressing four buttons 28 at the same time can drive the four blades to move inward at the same time until the blade surfaces are close together, thereby cutting the breast tumor tissue located in the cutting cavity 212.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for accurately locating and removing breast tumors, characterized in that: include A positioning mechanism (1), wherein the positioning mechanism (1) is used to locate a breast tumor; A grasping and removing mechanism (2), wherein the grasping and removing mechanism (2) is used to grasp and remove the breast tumor located by the positioning mechanism (1); A mounting frame, the mounting frame is used to connect the positioning mechanism (1) and the grabbing and cutting mechanism (2) and to fix the grabbing and cutting mechanism (2) above the positioning mechanism (1).

2. The breast tumor precise positioning and removal device according to claim 1, characterized in that: The positioning mechanism (1) comprises a positioning plate (12) and a side strip (11) fixed on the periphery of the positioning plate (12). A through hole (16) is provided at the center of the positioning plate (12) for passing through the grasping and cutting mechanism (2) and performing grasping and cutting operations. The positioning plate (12) has a plate body uniformly provided with a plurality of through holes (13) around the outer side of the through hole (16). The through holes (13) are used for air circulation to prevent infection of the wound due to stuffiness. The front and rear sides of the surface of the positioning plate (12) are provided with longitudinal marking lines (14), and the left and right sides of the surface of the positioning plate (12) are provided with transverse marking lines (15). The longitudinal marking lines (14) cooperate with the transverse marking lines (15) to locate the position of the breast tumor.

3. The breast tumor precise positioning and removal device according to claim 2, characterized in that: The grabbing and cutting mechanism (2) comprises a sleeve (21) and a screw sleeve (25), a sliding rod (22) is slidably connected inside the sleeve (21), one end of the sliding rod (22) extends above the sleeve (21), and a pressing handle (23) is fixed to the top of the sliding rod (22), one end of the sliding rod (22) is sleeved with a first spring (27), the upper and lower ends of the first spring (27) are respectively connected and fixed to the pressing handle (23) and the sleeve (21), and a plurality of grabbing claws (26) are fixed to the bottom end of the sliding rod (22).

4. The breast tumor precise positioning and removal device according to claim 3, characterized in that: The outer surface of the sleeve (21) corresponding to one end of the screw sleeve (25) is provided with an external thread (24), and the screw sleeve (25) is provided with a corresponding internal thread. The sleeve (21) is threadedly connected to the screw sleeve (25) via the external thread (24) provided on its surface.

5. The breast tumor precise positioning and removal device according to claim 4, characterized in that: A sliding hole (211) is provided in the sleeve (21), and the sliding hole (211) is used to slide the sliding rod (22) up and down. A cutting cavity (212) is provided at the bottom end of one side of the sleeve (21) corresponding to the sliding hole (211). The cutting cavity (212) is used to provide a working space for cutting breast tumor tissue. A plurality of cutting blades (210) are arranged around the cutting cavity (212), and a linkage rod (210) is fixed to each of the plurality of cutting blades (210). 9), one end of each of the plurality of linkage rods (29) penetrates the inner wall of the sleeve (21) and extends upward, a button (28) is provided on one side of the upper end of the sleeve (21) corresponding to each of the plurality of linkage rods (29), a guide rod (213) is fixed between each of the plurality of buttons (28) and the linkage rod (29) on the corresponding side, and the guide rod (213), the button (28) and the linkage rod (29) all slide relative to the axial direction of the sleeve (21).

6. The breast tumor precise positioning and removal device according to claim 5, characterized in that: A second spring (214) is sleeved on each of the plurality of guide rods (213), and two ends of the plurality of second springs (214) are respectively connected and fixed to the inner walls at both ends of the sleeve (21).

7. The breast tumor precise positioning and removal device according to claim 1 or 6, characterized in that: The mounting frame comprises a support ring (3), the support ring (3) is sleeved on the outside of the grabbing and cutting mechanism (2), and the support ring (3) is arranged above the positioning mechanism (1), the support ring (3) and the grabbing and cutting mechanism (2) are connected and fixed via a transverse bracket (5), and the support ring (3) and the positioning mechanism (1) are connected and fixed via a longitudinal bracket (4).

8. The breast tumor precise positioning and removal device according to claim 3, characterized in that: The grabbing claw (26) is a sheet-like structure, is elastic and can be stretched or contracted, and comprises a bending portion (261) and a grabbing portion (262), wherein the bending portion (261) and the grabbing portion (262) are integrally formed, and the grabbing portion (262) is arranged at the bottom end of the bending portion (261), and the top end of the bending portion (261) is connected and fixed to the sliding rod (22), and the bottom end of the grabbing portion (262) is a pointed structure.

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